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The next number up from 621 that contains all 3's in it is 3333.

To figure out what whole number you need to add to 621 to get to 3333 just subtract the two.

3333 - 621 = 2712

Therefore, 2712 is the small whole number that you can add to 621 and get an answer that contains all 3's.

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Q: What is the smallest whole number you can add to 621 and get all 3s in the answer?

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If it is a whole number, you only need to add 1, 613400 + 1 = 613401

It is: 11 because 1+1 = 2 which is the smallest prime number

Add the whole number to the whole part of the mixed number. For example, 3 + 2 and 1/2 = 5 and 1/2. The fractional part is separate from the whole part.

There is no biggest whole number. You can always add one more.

The smallest prime number, of course, is 2. The smallest prime number whose digits add up to 2 is, of course, 2. The next-smallest is 11. It is left as an exercise for the reader to determine whether the other numbers whose digits add up to 2 (e.g. 101, 1001, 10001) are prime.

Related questions

What is the smallest whole number you can add to 637 and get all 5's in the answer?

It is 2702.

Just add one to that number!

If it is a whole number, you only need to add 1, 613400 + 1 = 613401

Yes, the sum of 273 and 348 is 621.

Add whole, then to the sum put the fraction next to it

It is: 11 because 1+1 = 2 which is the smallest prime number

243

Add the whole number to the whole part of the mixed number. For example, 3 + 2 and 1/2 = 5 and 1/2. The fractional part is separate from the whole part.

17

151

There is no biggest whole number. You can always add one more.